The Design Of Rotated Scanning Infrared Target Detecting And Tracking System

In the modern war struggle and defense system,a strong security defense system is indispensable.As the infrared target detection system has the superior properties such as far-distance detecting,good concealing,strong ability of anti-electromagnetic interference,working night and day,it is widely used and playing a more and more important role in the military field.Nowadays,with the development of the stealth technology,the missile and different kinds of combat aircraft's effective reflective area of radar is decreasing,which leads to the increasing difficulty of the radar detection tracking.However,the tail flame of this type of target engine and the friction with air while moving could generate a strong infrared radiation.As a result,it is very advantageous to test and track the infrared detection system.Therefore,studying of the infrared target detection tracking system has important practical significance and broad prospects for development.It is crucial for the target detection tracking system to have the capacity of detecting and tracking the target in a broader space.In general,the target is moving and its possible location is also uncertain.Hence,we need a kind of flexible mobile device to combine with the target acquisition device,so that it can make the detecting devices target and track the acquisition in a broader space.A set of infrared target detection tracking system based on rotate-scanning is designed in this paper to deal with the missiles and aircraft attacking from a low altitude.The main research contents and results are as follows:(1)Based on the study background and significance,it conducts a deep understanding and analysis of the developing status and trends as well as the key technologies of the rotate-scanning infrared target detection tracking system.(2)It puts forward a whole design scheme of the rotate-scanning infrared target detection tracking system and introduces the system's design proposal of the software and hardware.(3)The hardware design proposal of the system is explained in detail,including the model selection of the infrared detector and the cloud terrace,the design of the cradle's control system,the design of the FPGA and the FPGA's peripheral circuit,the design of the RK3288 and the RK3288's peripheral circuit,the design of the whole system's PCB,and so on.(4)The software design proposal of the system is explained in detail,including the control logic of the cloud terrace,the realization of the FPGA's pre-processing algorithm and the target detection accelerating algorithm,the module design of various interfaces,the transplant of the target detection algorithm of RK3288,and so on.Last but not least,it tests the operation of the system and analyzes the performance indexes.The performance parameters of the rotate-scanning infrared target detection tracking system this thesis designed all meet the designed requirements.Furthermore,the designed rotate-scanning infrared target detection tracking system has an omnibearing target detection ability and can realize real-time tracking of targets within the scope of the designed indexes.